So I have an i5 27" that came with 4GB RAM (two 2 gig chips). I ordered two more 2 gig chips for a total of 8. When I went to install the two new ones, I followed logical steps. Remove the flexible plastic strip, slide the ram into the slot. However, the ram doesn't click, slide, or pop into place, in any way. I have tried both sides, and I have tried flipping the ram over and doing it backwards. I tried booting the computer with them in there even though they weren't settled in and it froze. I took them out, put the cover back on, and rebooted, and now every time I boot i get a meter that takes forever to fill up. Once booted, the computer does work normally. What am I doing wrong? And how can i fix this painfully long boot process? What have i done!?!?! Any help is appreciated.